A week in tech, April 9-15

A roundup of the latest tech news.

Telecommunicationsò Telecommunications carrier KDDI Corp has lowered its group pre-tax profit projection by 3.3% to Ñ406 billion $58 billion for 2007, citing an increase in sales promotion costs from an unexpected boost in its mobile phone subscriptions. Marketing costs increased after the number of contracts to KDDI's ''au'' mobile phone service climbed to 30.1 million as of March 31, due to new offers like free calls between family members. The number of subscriptions beat an earlier...